Tariffs and Charges
Effective from
1 January
April 2007
2005–– 31 March 2006
2008
Definitions
(Active) energy charge is a charge for each unit of energy consumed, typically charged for as
c/kWh or R/kWh.
Administration charge comprises periodic charges to cover the cost of the administration of the
account, such as meter reading, billing and meter capital, and is applicable irrespective of whether
electricity is consumed.
Annual utilised capacity is the higher of the customer’s notified maximum demand (NMD) or
maximum demand (MD), measured in kVA, registered during a rolling 12-month period. (Also see
Appendix F.)
Billing is the process of producing and delivering a bill (an account or invoice) for payment by a
customer, calculated from the tariff schedule or as per agreement between the parties (eg Special
Pricing Agreements) and, for the majority of customers, the consumption measured and recorded by
the metering system.
Billing period is the duration of the period from one meter reading date and time (actual or
estimated) to the next meter reading date and time.
Bulk supply is a single point of supply to an intermediate distributor or reseller for resale to other
customers.
Capital cost is the expenditure on plant, equipment and other resources required in order to provide
capacity.
Chargeable demand is the highest average demand measured in kVA in a billing month during the
chargeable time periods specified for each tariff.
Chargeable time periods are the time periods when the demand registered will be charged for. The
chargeable time periods differ and are described with each of the respective tariffs.
Connection charge is the charge recouped from the customer for the cost of providing new or
additional capacity (irrespective of whether new investment is required or not), recovered through
tariff charges.
Note: It is payable in addition to the tariff charges as an upfront payment or as a monthly connection
charge where the distributor finances the connection charge.
Connection fee is a standard minimum upfront fee payable by the customer towards the cost of a
new connection.
Energy demand charge is a R/kVA or R/KWh charge per premise which is seasonally differentiated
and is based on the chargeable demand registered during the month in order to recover peak energy
costs.
Maximum demand is the highest averaged demand measured in kVA or kW during any integrating
period within a designated billing period.
Note: The integrating period is normally 30 minutes and the designated billing period refers to all time
periods.
Monthly utilised capacity is the higher of the customer’s notified maximum demand (NMD) or
maximum demand, measured in kVA or kW, registered during the billing month. (Also see Appendix
F.)
Network access charge (NAC) is a tariff component that is fixed on an annual basis and is charged
as R/kVA on the annual utilised (reserved) capacity.
Network charge is a charge to recover network costs (including capital, operations, maintenance
and refurbishment) associated with the provision of network capacity required and reserved by the
customer.
Network demand charge (NDC) is a charge that is variable on a monthly basis and is charged on
the actual demand measured in all peak and standard periods of the billing period.
Notified maximum demand (NMD) is the maximum demand notified in writing by the customer and
accepted by Eskom.
Note: The notification of demand is governed by a set of rules called the NMD rules, which can be
viewed at the following web site: www.eskom.co.za/tariffs.
Point of supply is the physical point on the electrical network where electricity is supplied to a
customer. (Also see Premise.)
Power factor is the ratio of kW to kVA measured over the same integrating period.
Premise or point of delivery means either a single point of supply or a specific group of points of
supply located within a single substation, at which electricity is supplied to the customer at the same
declared voltage and tariff.
Note: This can be a metering or summation point.
Rate components are the different charges associated with a tariff, for example the energy charge.
Rate-rebalancing levy is a separate rate component shown on the customers’ bills, transparently
indicating explicit levies.
Note: Historically Nightsave (Urban), Megaflex and Miniflex have made different contributions
towards subsidies and the rate-rebalancing levy will therefore differ for each tariff.
Reactive energy charge is a charge based on the reactive energy used.
Note: This charge is applicable to Megaflex, Miniflex and Ruraflex.
Service charge is a fixed charge payable per account to recover service-related costs. Note: For the
Homepower, Landrate and Businessrate tariffs the service costs and administration costs are
combined to make up the service charge and are charged per premise.
Single-phase supply is a 50 Hz AC supply at 230 V rms phase-to-neutral. The neutral carries the
full load current.
Tariff is a combination of charging parameters applied to recover measured quantities such as
consumption and capacity costs, as well as unmeasured quantities such as service costs.
Note: The tariff rate, multiplied by the measured service quantities, recovers the cost of service.
Three-phase supply is a 50 Hz AC supply at 230 V rms phase-to-neutral; 400 V rms phase-tophase (120˚ vector phase displacement).
Time-of-use (TOU) tariff is a tariff that has different energy rates for the same tariff component
during different time periods and seasons in order to reflect the shape of Eskom’s long-run marginal
energy cost of supply at different times more accurately.
Transmission surcharge is a zonal pricing signal to indicate the costs associated with the
transmission of energy over long distances.
Urbanp areas refer to urban as classified for pricing purposes.
Voltage surcharge is a percentage surcharge levied on customers with lower supply voltages.
Note: This contributes to the cost of transforming electricity to lower voltages. It is calculated as a
percentage of the active energy charge, the energy demand charge (where applicable) and the
network charge to reflect the higher cost at lower voltage.
Urban
Electricity tariff for urbanp customers with an NMD from 25 kVA
This tariff is characterised by:
š
Seasonally differentiated energy demand and active energy charges
š
Two time periods, namely peak and off-peak (refer to Appendix C)
š
A network access charge applicable during all time periods
š
A network demand charge and energy demand charge applicable during peak periods
š
A c/kWh contribution to cross-subsidies to the rural and Homelight tariffs
Capital costs
A connection charge will be payable in addition to the tariff for new connections or additional
capacity.
Connection fee
Refer to Appendix E (Table 1).
The rates listed below are for non-local-authority supplies.
authority supplies are listed at the end of this book.
The rates for local-
Service charge
Charged per account and is based on the sum of the monthly utilised capacity of all premises
linked to an account.
≤ 100 kVA
R1,01 + VAT = R1,15/day
> 100 kVA and ≤ 500 kVA
R12,68 + VAT = R14,46/day
> 500 kVA and ≤ 1 MVA
R62,22 + VAT = R70,93/day
> 1 MVA
R62,22 + VAT = R70,93/day
Key customers
R487,02+ VAT = R555,20/day
Administration charge
Based on, and payable for, the monthly utilised capacity of each premise linked to an account.
≤ 100 kVA
R2,49 + VAT = R2,84/day
> 100 kVA and ≤ 500 kVA
R4,01 + VAT = R4,57/day
> 500 kVA and ≤ 1 MVA
R33,29 + VAT = R37,95/day
> 1 MVA
R33,39 + VAT = R38,06/day
Key customers
R35,19 + VAT = R40,12/day
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 11
Network demand charge
R7,08 + VAT = R8,07/kVA payable for each kVA of the chargeable demand supplied during peak
periods per premise per month.
Network access charge
R6,26 + VAT = R7,14/kVA payable each month, based on the annual utilised capacity of each
premise. This charge is applicable during all time periods.
Energy demand charge
Payable for each kVA of the chargeable demand supplied during peak periods per premise per
month.
High-demand season (June – August)
Low-demand season (September – May)
R32,37 + VAT = R36,90/kVA
R4,59 + VAT = R5,23/kVA
Active energy charge
High-demand season (June – August)
Low-demand season (September – May)
11,28c + VAT = 12,86c/kWh
8,02c + VAT = 9,14c/kWh
Voltage surcharge
Calculated as a percentage of network demand, network access, energy demand and active
energy charges.
Supply voltage
Surcharge
> 132 kV
0,00%
≥ 66 kV and ≤ 132 kV
7,63%
≥ 500 V and < 66 kV
10,07%
< 500 V
17,30%
Transmission surcharge
Calculated as a percentage of network demand, network access, energy demand and active
energy charges after the voltage surcharge have been levied. The surcharge rate depends on the
distance from a central point in Johannesburg.
≤ 300 km
0%
> 300 km and ≤ 600 km
1%
> 600 km and ≤ 900 km
2%
> 900 km
3%
Rate-rebalancing levy
2,97c + VAT = 3,39c/kWh applied to the total active energy consumption (not subject to the
voltage and/or transmission surcharge).
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 12
TOU electricity tariff for urbanp customers with an NMD > 1 MVA that are able to
shift load
This tariff is characterised by:
š
Seasonally and time differentiated c/kWh active energy charges
š
Three time-of-use periods namely; peak, standard and off-peak
š
A R/kVA network access charge applicable during all time periods, differentiated voltage and
transmission zone
š
A R/kVA network demand charge applicable during peak and standard periods
š
A R/day service and administration charge based on the size of supply
š
A c/kWh contribution to cross-subsidies to the rural and Homelight tariffs
Capital costs
A connection charge will be payable in addition to the tariff for new connections or additional
capacity.
Connection fee
Refer to Appendix E (Table 1).
The rates listed below are for non-local-authority supplies.
authority supplies are listed at the end of this book.
The rates for local-
Service charge
Charged per account and is based on the sum of the monthly utilised capacity of all premises
linked to an account.
≥ 1 MVA
R62,22 + VAT = R70,93/day
Key customers
R487,02 + VAT = R555,20/day
Administration charge
Based on, and payable for, the monthly utilised capacity of each premise linked to an account.
≥ 1 MVA
R35,89 + VAT = R40,91/day
Key customers
R37,19 + VAT = R42,40/day
Network demand charge
R7,08 + VAT = R8,07/kVA payable for each kVA of the chargeable demand supplied during peak
and standard periods per premise per month.
Network access charge
R6,26 + VAT = R7,14/kVA payable each month and is based on the annual utilised capacity of
each premise. This charge is applicable during all time periods.
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 13
Active energy charge
High-demand season (June – August)
Low-demand season (September – May)
55,30c + VAT = 63,04c/kWh
Peak
15,69c + VAT = 17,89c/kWh
14,62c + VAT = 16,67c/kWh
Standard
9,74c + VAT = 11,10c/kWh
7,95c + VAT = 9,06c/kWh
Off-peak
6,90c + VAT = 7,87c/kWh
Reactive energy charge
2,79c + VAT = 3,18c/kVARh supplied in excess of 30% (0,96 PF) of kWh recorded during peak
and standard periods. The excess reactive energy is determined per 30-minute integrating period
and accumulated for the month and will only be applicable during the high-demand season.
Voltage surcharge
Calculated as a percentage of network demand, network access and active energy charges.
Supply voltage
Surcharge
> 132 kV
0,00%
≥ 66 kV and ≤ 132 kV
7,63%
≥ 500 V and < 66 kV
10,07%
< 500 V
17,30%
Transmission surcharge
Calculated as a percentage of the network demand, network access, active energy and reactive
energy charges after the voltage surcharge has been levied. The surcharge rate depends on the
distance from a central point in Johannesburg.
≤ 300 km
0%
> 300 km and ≤ 600 km
1%
> 600 km and ≤ 900 km
2%
> 900 km
3%
Rate-rebalancing levy
1,61c + VAT = 1,84c/kWh applied to the total active energy consumption (not subject to the
voltage and/or transmission surcharge).
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 14
TOU electricity tariff for urbanp customers with an NMD from 25 kVA up to 5 MVA
This tariff is characterised by:
š
Seasonally and time differentiated c/kWh active energy charges
š
Three time-of-use periods namely; peak, standard and off-peak
š
A R/kVA network access charge applicable during all time periods, differentiated voltage and
transmission zone
š
A R/kVA network demand charge included in the energy charge
š
A R/day service and administration charge based on the size of supply
š
A c/kWh contribution to cross-subsidies to the rural and Homelight tariffs
Capital costs
A connection charge will be payable in addition to the tariff for new connections or additional
capacity.
Connection fee
Refer to Appendix E (Table 1).
The rates listed below are for non-local-authority supplies.
authority supplies are listed at the end of this book.
The rates for local-
Service charge
Charged per account and is based on the sum of the monthly utilised capacity of all premises
linked to an account.
≤ 100 kVA
R2,32 + VAT = R2,64/day
> 100 kVA and ≤ 500 kVA
R12,68 + VAT = R14,46/day
> 500 kVA and ≤ 1 MVA
R62,22 + VAT = R70,93/day
> 1 MVA
R62,22 + VAT = R70,93/day
Key customers
R487,02 + VAT = R555,20/day
Administration charge
Based on, and payable for, the monthly utilised capacity of each premise linked to an account.
≤ 100 kVA
R2,61 + VAT = R2,98/day
> 100 kVA and ≤ 500 kVA
R4,25 + VAT = R4,85/day
> 500 kVA and ≤ 1 MVA
R34,71 + VAT = R39,57/day
> 1 MVA
R34,71 + VAT = R39,57/day
Key customers
R34,71 + VAT = R39,57/day
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 15
Network access charge
R6,26 + VAT = R7,14/kVA payable each month and is based on the annual utilised capacity of
each premise. This charge is applicable during all time periods.
Active energy charge
High-demand season (June – August)
Low-demand season (September – May)
56,55c + VAT = 64,47c/kWh
Peak
17,44c + VAT = 19,88c/kWh
16,37c + VAT = 18,66c/kWh
Standard
11,55c + VAT = 13,17c/kWh
7,87c + VAT = 8,97c/kWh
Off-peak
6,82c + VAT = 7,77c/kWh
Reactive energy charge
1,22c + VAT = 1,39c/kvarh supplied in excess of 30% (0,96 PF) of the kWh recorded during the
entire billing period. The excess reactive energy is determined using the billing period totals and
will only be applicable during the high-demand season.
Voltage surcharge
Calculated as a percentage of network access and active energy charges.
Supply voltage
Surcharge
> 132 kV
0,00%
≥ 66 kV and ≤ 132 kV
7,63%
≥ 500 V and < 66 kV
10,07%
< 500 V
17,30%
Transmission surcharge
Calculated as a percentage of the network access, active energy and reactive energy charges after
the voltage surcharge has been levied. The surcharge rate depends on the distance from a central
point in Johannesburg.
≤ 300 km
0%
> 300 km and ≤ 600 km
1%
> 600 km and ≤ 900 km
2%
> 900 km
3%
Rate-rebalancing levy
1,47c + VAT = 1,68c/kWh applied to the total active energy consumption (not subject to the
voltage and/or transmission surcharge).
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 16
Appendix A - Transmission percentage surcharge
The energy demand charge (where applicable), active energy charge, reactive energy charge
(where applicable) and network charge are subject to a transmission surcharge after the voltage
surcharge has been levied. The surcharge rate depends on the distance from a central point in
Johannesburg.
≤ 300 km
0%
> 300 km and ≤ 600 km
1%
> 600 km and ≤ 900 km
2%
> 900 km
3%
Nelspruit
Pretoria
Witbank
Johannesburg
Klerksdorp
0%
300 km
1%
Upington
Kimberley
Bloemfontein
Pietermaritzburg
Durban
2%
900 km
East London
3%
George
Port Elizabeth
Cape Town
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 33
Appendix B - Treatment of public holidays
The table below indicates the treatment of public holidays in terms of the TOU tariffs, namely
Nightsave (Urban), Megaflex and Miniflex tariffs for the period 1 April 2007 to 31 March 2008 for
non-local-authority supplies. The holidays from 6 April 2008 until 16 June 2008 are shown for
local authority supplies. The appropriate seasonally differentiated energy charges will be applicable
on these days. Any unexpectedly announced public holiday will be treated as the day of the week
on which it falls.
NOTE: Each of the public holidays for the Nightsave (Rural) and Ruraflex tariffs will be treated as the day of the week
on which it falls.
TOU day treated as
Date
Actual day
of the week
Day
Urban
1 January 2007
New Year's Day
Monday
Sunday
Sunday
21 March 2007
Human Rights Day
Wednesday Sunday
Saturday
6 April 2007
Good Friday
Friday
Sunday
Sunday
9 April 2007
Family Day
Monday
Sunday
Sunday
27 April 2007
Freedom Day
Friday
Sunday
Saturday
1 May 2007
Workers Day
Tuesday
Sunday
Saturday
16 June 2007
Youth Day
Saturday
Sunday
Saturday
9 August 2007
National Women's Day Thursday
Sunday
Saturday
24 September 2007 Heritage Day
Monday
Sunday
Saturday
16 December 2007 Day of Reconciliation
Sunday
Sunday
Sunday
17 December 2007 Public Holiday
Monday
Sunday
Saturday
25 December 2007 Christmas Day
Tuesday
Sunday
Sunday
26 December 2007 Day of Goodwill
Wednesday Sunday
Sunday
1 January 2008
New Year's Day
Tuesday
Sunday
Sunday
21 March 2008
Human Rights Day
Friday
Sunday
Saturday
6 April 2008
Good Friday
Friday
Sunday
Sunday
9 April 2008
Family Day
Monday
Sunday
Saturday
27 April 2008
Freedom Day
Saturday
Sunday
Saturday
1 May 2008
Workers Day
Wednesday Sunday
Saturday
16 June 2008
Youth Day
Sunday
Sunday
© Eskom April 2007
Sunday
Eskom Tariffs and Charges 2007/8
Page 34
Appendix C - Eskom’s defined time periods
Nightsave (Urban) and Nightsave (Rural)
Peak
Off-peak
Megaflex, Miniflex and Ruraflex
Peak
Standard
Off-peak
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 35
Appendix F - Illustration of monthly and annual utilised capacity
š
Monthly utilised capacity (MUC) is the higher of the customer’s notified maximum demand (NMD) or
maximum demand (MD), measured in kVA, and registered during the billing month.
š
Annual utilised capacity (AUC) is the higher of the customer’s NMD or MD, measured in kVA,
registered during a rolling 12-month period.
MD > NMD
240
Maximum demand (MD)
• AUC = 220 kVA
• MUC = 220 kVA
Monthly utilised capacity (MUC)
Annual utilised capacity (AUC)
MD > NMD (during a rolling 12-month period)
220
AUC = 220 kVA
1
200
kVA
Notified Maximum Demand (NMD)
2
3
4
5
6
7
8
9
10
11
NMD = 200 kVA
12
180
160
140
120
Jan’04 Feb Mar Apr May Jun
š
Jul
Aug Sep Oct Nov Dec Jan’05 Feb Mar Apr
May Jun
Jul
Aug Sep Oct Nov Dec
MD < NMD
MD < NMD (per billing month)
MD < NMD
• AUC = 200 kVA
• MUC = 200 kVA
• MUC = 200 kVA
• AUC = 200 kVA (reset after 12-month period)
• MUC = 200 kVA
Month
January '04
February
March
MD (kVA)
150
180
190
NMD (kVA)
200
200
200
April
May
June
July
August
September
October
November
December
January '05
February
March
April
May
June
July
August
September
October
November
December
220
195
180
180
180
150
160
180
190
195
185
190
195
185
180
180
180
150
160
180
190
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
© Eskom April 2007
Comments
MUC (kVA)
AUC (kVA)
NMD is higher than MD for billing
month and over a 12-month period.
200
200
MD is higher than NMD.
220
220
200
220
200
200
NMD is higher than MD for billing
month. (MUC is reset.)
MD registered in April '04 is higher
than NMD over a 12-month period.
(AUC remains at higher level.)
NMD is higher than MD for billing
month and over a 12-month period.
(MD registered in April '04 is no
longer applicable. AUC is reset.)
Eskom Tariffs and Charges 2007/8
Page 38
TARIFF COMPONENTS
Nightsave (Urban)
2007
Nightsave (Rural)
2007
+VAT
Megaflex
+VAT
2007
Miniflex
2007
+VAT
Ruraflex
2007
+VAT
+VAT
SERVICE CHARGE (R/day)
0 to <100 kVA
100kVA to <500kVA
500 kVA to <1 MVA
>1 MVA
Key Customers
R 71.91
R 562.90
R 2.34
R 12.85
R 63.08
R 63.08
R 493.77
R 2.67
R 14.65
R 71.91
R 71.91
R 562.90
R 3.66
R 12.85
R 63.08
R 63.08
R 493.77
R 4.17
R 14.65
R 71.91
R 71.91
R 562.90
R 36.39
R 37.71
R 41.48
R 42.99
R 2.64
R 4.31
R 35.20
R 35.20
R 35.20
R 3.01
R 4.91
R 40.13
R 40.13
R 40.13
R 5.37
R 7.04
R 37.53
R 37.53
R 37.53
R 6.12
R 8.03
R 42.78
R 42.78
R 42.78
R 7.19
R 6.34
R 8.20
R 7.23
R 6.34
R 7.23
R 3.69
R 4.21
TOU energy rate: High Demand Season
Peak*#
Standard *#
Off-peak*#
56.07
14.83
8.07
63.92
16.91
9.20
57.34
16.60
7.98
65.37
18.92
9.10
92.68
23.96
12.73
105.66
27.31
14.51
TOU energy rate: Low Demand Season
Peak*#
Standard *#
Off-peak*#
15.91
9.87
7.00
18.14
11.25
7.98
17.68
11.72
6.91
20.16
13.36
7.88
25.67
15.67
10.91
29.26
17.86
12.44
1.64
1.87
1.49
1.70
2.82
3.21
0.00
0.00
1.87
2.13
ADMINISTRATION CHARGE (R/day)
0 to <100 kVA
100kVA to <500kVA
500 kVA to <1 MVA
>1 MVA
Key Customers
NETWORK CHARGE (R/kVA)
NETWORK DEMAND CHARGE (R/kVA)*#
NETWORK ACCESS CHARGE (R/kVA)*#
ENERGY (c/kWh)
Non-TOU: High Demand Season*#
Non-TOU: Low Demand Season*#
Rate Rebalancing Levy / Subsidy (c/kWh)
ENERGY DEMAND CHARGES (R/kVA)
High Demand Season*#
Low Demand Season*#
R 1.01
R 12.85
R 63.08
R 63.08
R 493.77
R 1.15
R 14.65
R 71.91
R 71.91
R 562.90
R 3.66
R 12.85
R 63.08
R 63.08
R 493.77
R 4.17
R 14.65
R 71.91
R 71.91
R 562.90
R 2.52
R 4.08
R 33.75
R 33.86
R 35.68
R 2.87
R 4.65
R 38.48
R 38.60
R 40.68
R 5.25
R 6.62
R 35.11
R 35.11
R 35.11
R 5.99
R 7.55
R 40.03
R 40.03
R 40.03
R 7.19
R 6.34
R 8.20
R 7.23
R 2.80
R 3.19
11.43
8.13
13.03
9.27
12.99
8.95
14.81
10.20
3.00
3.42
R 32.82
R 4.65
R 37.41
R 5.30
R 56.85
R 37.45
R 63.08
R 493.77
R 64.81
R 42.69
REACTIVE ENERGY (c/kvarh)
* Subject to voltage surcharge
# Subject to transmission surcharge
© Eskom April 2007
Eskom Tariffs and Charges 2007/8
Page 43